Muffler cut-out for automobiles.



G. (L HAWLEY I E. K. BAKER.

MUFFLBR GUT-GUT FOR AUTOMOBILES.

APPLICATN FILED SEPT. 8, i908.

Patented Aug. l0, 1909.

2 SHEETS-SHEET l,

bve/:727145 Nnml; JERS. INC., Lum) WMHINGTON. U L

G. G. HAWLEY & E. K. BAKER.

MUFFLEB. GUT-OUT FOR AUTOMOBILES.

APPLICATION FILED SIIPT. 8, 1908.

Patented Aug. 10, 1909.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT oEEIcE.

CHARLES GILBERT HAWLEY AND ERLE KING BAKER, OF CHICAGO, ILLINOIS.

MUFFLER OUT-OUT FOR AUTOMOBILES.

Specification of Letters Patent.

Patented Aug. 1o, 1909.

Application filed September 8, 1908. Serial No. 451,953.

To all whom it may concern:

Be it known t.liat\we, CHARLES GILBERT Il.\ w1.uv and Enma K. Bange, citizens'of the United lStates, and residents of Chicago, Cook county, Illinois, have invented certain new and... useful Improvements in Muffler Cut-Outs for Automobiles, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to mal-:e and use the same.

Our invention relates to means for relieving the pressure of the exhaust gases in the exhaust pipes or muliier pipes of hydrocarbon engines and the like. The invention has particular reference to improvements in valves for application to the exhaust pipes of such engines atpoints between the engine langularly positioned with respect to the valve seat to open the valve and spring means normally holding the valve proper or plate upon the valve scat,d to close the opening or passage therein.

Our invention in its preferred form comprises a two-part sleeve adapted tobe clamped upon a inutiler or exhaust pipe, one part of said sleeve being provided with a gasket to encircle or inclose an outlet opening in said pipe and said part of the sleeve being provided with an. opening or -passage for communication with that in the pipe and terminating in a valve of the foregoing description. i

The invention will be more readily understood b v reference to the accompanying drawings, for-ming part of this specification and in which: y

Figure 1`4 is a plan view or elevation of a muier cut-out or relief valve embodying our invention. Fig. 2 is a sectional viewy thereof on the line Z-Z of Fig. 1. Fig. 3 is a sectional view on the line Y-Y of Fig. 2. Fie. 4 is a perspective vie'w of the valved portion of the two-part lor split sleeve, showing the packing groove which encircles or surrounds the outlet duct. Fig. 5 is a side view of the -device showinga modified form of the valve plate or valve proper. Fig. 6 is an end view thereof and Fig. 7 is a sectional view illustrating a simpler-form of our valve.

In these drawings 2 represents a portion of the exhaust or muffler pipe, between the' explosion engine (not shown) and the muffier (not shown). Instead of cutting the pipe, to insert the valve we simply make a hole, 2', in the pipe, and clamp our valve over this opening. The opening may be made with ordinary hand tools, for example, a tile, without resort to machine tools, and without' removing the pipe from the automobile. In the preferred formlof our valve the body portion-of the device is made up of a sleeve of slightly greater diameter than the pipeto which itisto be fitted. This sleeve is split longitudinally, that is, it is formed in two parts, 3 and-4, joined by clamping bolts, 5.A One bolt on each side is sufficient except in valves of more than ordinary sizes. The sleeve parts are preferably castings'. and onthe partl 3 We form the T or right angled portion, 6, containing an outlet opening duct or passage, 7 The T terminates vin a flat end, face or seat, 8, to receive the'valveplate or valve proper, 9, hereinafter more fully described. It Will be noted that the duct, 7, and the hole, 3, in the pipe are smaller than the pipe, and that the opening in the pipe is entirely covered by the sleeve member, 3. Tol pack the `joint between the member 3 and the side of the cle. Its appearance in the groove is indiy cated by the dotted linesv in-F a. The Walls of the packing groove, 1l, are preferably perpendicular to thebo'ttom thereof 'and serve to retain the strip of packing,

Without other fastening mean-s. The longitudinal Walls, 1l', at the two sides of thev packing groove are 4parallel with the pipe andprevent the displacement. of the packing when the member, 3, kis forced upon the side of the pipe.` The soft packing, l0, when llO seat, 8, (see Figs. 3, 5 and'.)

placed `in the groove of the valve proljects a considerable distance from the-inner surface of the member, 3, and the adjustand is circular, as shown by dotted lines in Fig. 1. lt is formed by grinding oit' the end of the casting, i. e., the portion, 6. On opposite sides of the seat we form the lugs or projections, 12,v of less height than the T he lugs, 12, contain threaded holes, 12, and. `in these we place the short bolts, 13. It should be noted that only short threads, 13', are provided on the ends of the bolts and that the latter are screwed home in the lugs. The Shanks, 13, of the bolts are smooth, between the bolt heads and the lugs, 12. This construction being desirable foi; the reason that the bolts serve as guides Iforthe valves, 9.'

Oni pposite sides of the valve seat, at right anges, to the lugs, 12, 12, we form other lugs, 1&1. These weterm fulcrum lugs. They may, if desired, extend to the plane of the valile seat, in which case they will be ground off at the same time as the seat, or they may stop short of the valve seat plane, as do the lugs, 12. So far as the operation of the valve is concerned, all of the lugs may be ground off simultaneously with the valve seat, but better seating of the valve is secured and considerable labor is saved by making the lugs slightly lower than the valve seat.` As hereinafter explained the valve or plate, 9, may be tipped or tilted in .iany direction upon'the valve seat, to open the valve, and any one of the lugs 12 and 14:l may serve as the lfulcrumat such time, or the edge of the valve seat may itself serve as the fulcrmn` for the valve proper.

The valve proper, 9, preferably takes the form of a` simple flat plate punched from sheet stock and presenting its flat side to the valve seat, 8. One extension of the plate forms an operating lever or handle, 9', havinga hole in its end for the operating cord. Other extensions of the plate form lateral ears, Q, 9". These contain holes, 93, which are spaced to correspond with the bolts, 13. The holes are considerably larger than the bolts an'd allow the plate to shift upon the seat, 8, and in consequence the `valve is self cleaning or,i may be easily reseated and cleaned at any time by movement of the valve across the seat. Compression springs,

15, on the bolts, 13, hold the .plate or valve proper firmly upon the seat, 8, 'and at the same time allow the plate to be raised or tilted thereon. Obviously the ears v9 and the parallel bolts, 13, 13, serve tb guide the valve in its movement toward and away fromv the seat and co-act with the springs to properly re-seat the valve plate when it is 'released An extension, 9", of the plate, 9,

covers thelug, 14, atone side of the seat and the other lug, 14, is covered by the lever or handle portion of the valve. The dot-ted lines, a, in Fig. 2 illustrate the position of the valve plate when fulcrumed or tilted upon the lower fulcrum lug, 14, and the dotted lines, I), represent the action of the valve when fulcrumed on the upper lug, 11. XVe prefer to fulcrum the plate on the lugs, rather than upon the edge of the valve seat. The valve seat is thereby relieved from wear by the sliding movement of the plate which occurs when the plate is lifted. As before suggested, the valve may be tilted in either direction 011 the valve seat, and when convenience of operation makes it desirable we bend or form the handle or lever portion of the plate in the manner shown in Figs. 5 and G and exert the pull thereon in either ofthe directions indicated by arrows in Fig. 5. When thus constructed the valve plate fulerums on the lug 12, as indicated by dotted lines in Fig. 5. VThe valve lever of Figs. 5 and t3 also accommodates itself to movement in thedirection of the arrows in Fig. G, in which case the valve fulcrums on the lugs 14:, as before explained in connection with Figs. 1 and 2. Diagonal movement of the valve plate causes it to fulcrum either upon the edge of the valve seat or upon two of the lugs, 12, 14. The guide bolts, 13, the

springs, 15, and the large holes 9, in the i plate allow movement of the valve in all directions and also to prevent it from sticking open after it is released.

Considerable force is required to tilt or open the 'valve against the pressure of the springs, and, this force when exerted in the direction of the arrows in Figs. 2 and (l tends to turn the valve as a whole upon the pipe. To prevent the displacement of the valve in this .manner and to avoid either rotative or longitudinal displacement thereof upon the pipe by the vibration to which it is subjected, we pin or lock the valve upon the pipe in a manner shown in Figs. 1, 3 and 5. A lug, 16,- projects from the end ofthe sleeve member, 3, and contains a set screw or locking screw, 17, preferably having a smooth end, 17, which occupies a hole, 18, in the side of the pipe. At the time that the ,valve is placed on the pipe and after it is properly positioned with respect to the hole3, therein, the set screw is removed from the lug and the lug is used as a gage in boring the hole, 18 in the pipe. After this is done the set screw cures thevalve body against movement ontlie pipe.'

Our invention in its most lliistrated in F ig. valve body portion, being a miiier head or other part. The seat, 8b, is formed on the body part, 19, and the valve proper, 9b. 'seats thereon. In this case the parallel guides. 13b, are placed in line with the valve handle. 9". The valve handle, 9, may be bent or iliade. 1n various forms tosuit dili'erent conditions. I As various modifications of ourv invention will readily suggest themselves to one skilled in the art we do not contine our invention to the specific structures herein shown and dcscribed. Y

Having thus described our inventioirwe '1.,A`muiiler cut-out comprising a 'alve u o b0dycont-a1n1ng an outlet duct or passage and, upon its exterior, at the end of said passage, provided with afiat val-vert'ace or seat, ,1n combination With a -lat plate' normally "seated on said seat vand 'constituting the valve'proper, guides for said plate, means pressing said plate on said seat, said plate being normally held in contact with the seat surface and tiltable ,on said surfaceand means for tilting the plate, substantially as described.` *I

2. Amuiler cut-outA coinj'iri'sing a valve body containing an outlet duct or passage andv having 'a valve Vseat at the outer end or" said passage, lin combination with a plate normally seated onsaidseat and constitutingfth'e valve proper, said vplate ,being of greater Width than said 'passage 'and' 'seat and' being nornially'lieldl in contactwith the seat surface and tiltable on 'said surface to open lsaid passage, guides whereon said plate is slidable'and means normally pressing the plate upon the seat, substantially as de scribed.vl

3. Amuliler cutout comprising a valve body containing an outlet duct oipassage and, at the outer end of said passage. prf.

vided with a flat circular seat, in-'conibina tion with parallel lguide' projecting-'troni said body adjacent to said seatand substan `tially perpendicular to the plane tliere'ot a plate''constitutingthe valve proper, said plate :being loosely guided by. said iguide and oppositely tiltable'upon said seat,'means i :for tilting said plate and .means normally pressingvthe-plate upon said seat, substantially as described.'

4. A mutilr cut-out comprising' a .valve body containing an outlet duct .or passage and having a at valve seat upon its exterior at the end of 'said passage, in combination with a flat plate constituting the valve proper, guides for said plate, springs pressis replaced and its end enters theV hole 1n the pipe and positively locks or se' simple form i, wherein 19 represents a.

and desire to secure byLetters ing the plate upon said seat. said plate being` of greater width than said seat'and tiltable thereon, means for tilting the plate and tulcruin lugs upon said body adjacent to said plate -for engagement b v said plate, substantially as described.

, A niutller `cut-out comprising a valve body having an outlet duct (ir-passage and provided witha narrow. circular valve seat at' the end ot said passage. in combination with a liat plate ot' greater size than said seat. tulcrum lugs or points upon the valve bod)v adjacent to said seat tor engagement b v said plate. said logs being lower .than said seat. plateguid'es perpendicular to said seat. compression .sp-rings on said guides adapted to hold the plaie on the seat and means for tilting said plate, substantially as described.

G. A muttler cut-out comprisinga valve --body containing an outlet duct or'passage `and ha ving' a narrow circular valve seat upon its exterior at the endl ot' said passage. in combination with parallel guides projecting from opposite sides of said lseat and pcrpeiidicular to the plane thereof. a fiat plate seated on said seat and tiltable thereon to open said passage. said/plate being loosely guided by said guides. springs on said guides normally holding said plate upon said seat aiid said plate havingan extension. formingI an operating handle or lever, substantially as describe .v

i 7. A iiiuiiier cut-out comprising a valve body (.ontai'ning an outlet duct or passage 10Q and having a narrow circular seat upon its exterior at the end of said passa ge. in combination with a fiat plate seated on said seat and constituting a valve'pri'iper. said plate being of greater diameter than said seat, ful- 105 crum parts about said valve seat for enga-genientY b v 'said plate. means 'for tilting` said plate. plate guiding means and springs noi `mall)v holding said plate ony said seat. said guiding means. plate and springs being formed to permit the tilting ot the plate on .the seat. to open said I uaszsage. substantially as described. t

S. A inuii'ier cut-out` comi'irising a valve body containing'an out/let duct or passage 115 and having. a narrow valve scat upon its exterior at the end ot said passage. in cnnbination .willi a plate constituting ythe valve proper, parallel bolts projecting t'roni saidl body at opposite'sides ot' said seat -and pei'- 12,0 i'ieiidicii-lar thereto. said plate having holes for said bolts and larger than the same', springs oii said bolts pressing on said platev and ineans for tilting said plateo'n said' seat, to open said passage, substantiallvas v described.

9. A muffler cut-oiit comprising a valve body containing an outletduct or passage and having a narrow circular seat ou its'exterior at the end ot' said passage, in coinlnna- 13o tion with a flat plate constituting the valve proper, parallel guides, for said plate, springs co-acting therewith to hold said plate on said seat and formed to permit said plate tobe tilted upon said seat in either of several directions, and an arm or lever for tilting said plate, to open said-passage, substantially as described.

lo. Ainutiier cut-out comprising a valve body containing an outlet duct or passage having a liat valve seat. at its end, in combination with a plate adapted to seat thereon and having an integral extension constituting an operating lever, parallel guides projecting 'from said-body perpeudicularly to the plane ot' said valve seat, said plate having guide4 holes and slidably engaged with said guides, springs pressing said plate upon said seat and said plate being tiltable uponv said seat in either of several directions, to open said passage, substantially as described.

l1. A mutllercut-out comprising a longitudinally divided, sleeve and means for clan'iping the same'upon a pipe, one member of said `sleeve containing an outlet duct or passage terminating in a flat circular valve seat, in combination with parallel guidesy projecting lfrom said parts said guides being perpendicular tothe plane of said seat, springs on said guides,^a fiat plate, loosely held by said guides and interposed between said springs and said seat, to close said passage, said plate being tiltable on said seat in several directions, an arm or lever attached to said plate for tilting the same to y open said passage, substantially as described.'

-tudinallyv divided sleeve and means 12. A mutller cut-out comprising a longi-` tudinally divided sleeve and means for clamping same upon a pipe, one part of said sleeve containing` an outlet passa' to register with an opening in such pipe'and also containing a packing groove surrounding the inner end of said passage, in combination with soft, iireproof packing in. said groove, said packing projecting inwardly beyond the inner surface of the sleeve, Said part of the sleeve havingfa valve seat upon its eX- terior at the outer end of said passage and. a valve proper, spring pref-"ed upon said seat, substantially as described.

13. A muitler cut-out comprising a longi- For clamping the same upon a pipe, in combination with means for positively locking'one4 part ofy said sleeve aga-inst rotative or longitudinal movement upon such pipe, said part containing an outlet duct or passage and a valve proper normally resting on the seat surface and closing said passage and tlltable`V vupon said surface,substantially as described.

feroii tudinally, divided sleeve and means tor clamping the same upon a pipe, in combina tion with a valve provided on one part of said sleeve and a set screw in said part provided with a smooth cylindrical end :for securing the sleeve against' movement on such pipe, substantially as described.

end of said passage, substantially as cle-- scribed. 17. A muiiler cut-out comprising a longi- -tudinally divided. sleeve and means for clamping the same upon a pipe, in combination with a gasket of packln of compressible tireproof material, partia y'embedded in the inner side of one part of said sleeve, said partcontaining an outlet opening or'pasy sage encircled by said gasket, said part having a narrow circular valve seat upon its exteriorY at the outer; endof said passage, parallel guide bolts projecting from. said part on opposite sides of said seat andl perpendicular to the lane thereof, springs on said bolts, a flat p ate loosely engaged with said guide bolts',` interposed between said springs and said seat and constituting the valve proper, ulcrum lugs on said sleeve part for engagement by said plate, means for tilting said plate in either of several directions, and meansv for positively locking said sleeve ab substantially as described. In testimony whereof, we have""hereunto set our hands this 5tli'day of September,- l908,:in the presence of the subscribing witnesses.

CHARLES GILBERT HAWLEY. ERLE KiNo BAKER.

Vitnesses:

H. T. Ross, E. STERN-- Uainst movement upon such pipe, i. 

